Water purification unit



FIG. 1 is a downward frontal right sided prospective view of a water purification unit according to my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left elevational view thereof; and,

FIG. 7 is a right elevational view thereof. 

The ornamental design of a water purification unit, as shown and described. 